CN217305234U

CN217305234U - Clamp for verifying LED lamp

Info

Publication number: CN217305234U
Application number: CN202220163617.5U
Authority: CN
Inventors: 陈晨
Original assignee: Taicang T&W Electronics Co Ltd
Current assignee: Taicang T&W Electronics Co Ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-08-26
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a verify anchor clamps of LED lamp, be in including PCB board and setting first LED lamp D1, second LED lamp D2, first resistance R1, second resistance R2, third resistance R3, fourth resistance R4, fifth resistance R5, sixth resistance R6, first triode Q1, second triode Q2, third triode Q3, fourth triode Q4, first electric capacity C1 and second electric capacity C2, voltage input end and earthing terminal on the PCB board. The utility model discloses can verify under the LED lamp maximum current state and whether normal condition of function and LED lamp circuit can normally work under the long-time break-make, convenient operation, the expense is low.

Description

Clamp for verifying LED lamp

Technical Field

The utility model relates to the field of electronic technology, and more specifically relate to an verify anchor clamps of LED lamp.

Background

In the field of electronic technology, in order to ensure that an LED lamp can normally operate, the capability of repeatedly turning on and off the LED lamp in the maximum current operating state to normally operate needs to be verified, and the reliability of the performance of the LED lamp needs to be verified by using the clamp board circuit. In the prior art, large-scale equipment is generally adopted, so that the cost is high, and the operation is extremely inconvenient.

SUMMERY OF THE UTILITY MODEL

Not enough to the above-mentioned technique, the utility model discloses a verify anchor clamps of LED lamp, the utility model discloses a verify under the LED lamp maximum current state and the long-time break-make whether normal condition of function down, observe the ability of whether normal work can be done to the LED lamp, verify the reliability of LED lamp performance, with low costs, convenient operation.

The utility model adopts the following technical scheme:

a clamp for verifying LED lamps comprises a PCB, a first LED lamp D1, a second LED lamp D2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first triode Q1, a second triode Q2, a third triode Q3, a fourth triode Q4, a first capacitor C1, a second capacitor C2, a voltage input end and a ground end, wherein the first LED lamp D1, the second LED lamp D2, the first resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, the sixth resistor R6, the first triode Q1, the second triode Q2, the third triode Q3, the fourth triode Q4, the first capacitor C1 and the second capacitor C2 are arranged on the PCB; wherein:

the base electrode of the first triode Q1 is connected with a first signal control end part A, the emitter electrode of the first triode Q1 is connected with a voltage input end through a first resistor R1, and the emitter electrode of the first triode Q1 is also connected with the grid electrode of a third triode Q3 through a fifth resistor R5;

the drain electrode of the third triode Q3 is connected with the ground terminal; the source of the third triode Q3 is connected in series with the third resistor R3 and the first LED lamp D1, and the anode of the first LED lamp D1 is connected to the voltage input terminal;

the drain electrode of the fourth triode Q4 is connected with the grounding end; the source of the fourth triode Q4 is connected in series with the fourth resistor R4 and the second LED lamp D2, and the anode of the second LED lamp D2 is connected to the voltage input terminal;

the grid electrode of the fourth triode Q4 is connected with the emitter electrode of the second triode Q2 through a sixth resistor R6, and the base electrode of the second triode Q2 is connected with the second signal control end part B;

the grid electrode of the fourth triode Q4 is also connected with the voltage input end through a second resistor R2;

the first capacitor C1 and the second capacitor C2 are connected in parallel, and one end of the first capacitor C1 and one end of the second capacitor C2 are connected to a voltage input terminal, and the other end of the first capacitor C1 and the other end of the second capacitor C2 are connected to a ground terminal.

As a further technical scheme of the utility model, the output voltage of voltage input end is 3.3V.

As a further technical solution of the present invention, the first capacitor C1 and the second capacitor C2 are power filter capacitors, and the values of the first capacitor C1 and the second capacitor C2 are 10uf and 0.1uf, respectively.

As a further technical scheme of the utility model, first LED lamp D1 is green lamp, and second LED lamp D2 is the yellow light.

As a further technical solution of the present invention, the first transistor Q1 and the second transistor Q2 are triodes; the third transistor Q3 and the fourth transistor Q4 are MOS transistors.

Has the positive and beneficial effects that:

the utility model discloses can verify under the LED lamp maximum current state and whether normal condition of function under the long-time break-make to and whether normal work of LED lamp circuit, convenient operation, the expense is low.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive labor, wherein:

fig. 1 is a schematic circuit diagram of the JTAG circuit verification of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the invention.

As shown in fig. 1, a fixture for verifying an LED lamp includes a PCB, and a first LED lamp D1, a second LED lamp D2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first triode Q1, a second triode Q2, a third triode Q3, a fourth triode Q4, a first capacitor C1, a second capacitor C2, a voltage input terminal and a ground terminal which are arranged on the PCB; wherein:

In the present invention, the output voltage of the voltage input terminal is 3.3V.

In a specific embodiment, VCC is an input terminal of an LED lamp power supply, and is used for an anode pin terminal of an LED lamp, and the power supply voltage is 3.3V and is supplied by an external direct current voltage source.

In the present invention, the first capacitor C1 and the second capacitor C2 are power filter capacitors, and the values of the first capacitor C1 and the second capacitor C2 are 10uf and 0.1uf, respectively.

The utility model discloses in, first LED lamp D1 is green lamp, and second LED lamp D2 is the yellow light.

In the specific embodiment, the anode is connected with a 3.3V power supply, the cathode is respectively connected with resistors R3 and R4, and the resistors R3 and R4 are both 0 ohm because the function in the maximum current state is verified.

In the present invention, the first transistor Q1 and the second transistor Q2 are transistors; the third transistor Q3 and the fourth transistor Q4 are MOS transistors.

In a specific embodiment, the MOS tube is controlled to realize the lighting of D1 and D2, the sources of the MOS tube are grounded, R1 and R5 form a voltage dividing resistor, R1 is 10K ohm, R5 is 1K ohm, R2 and R6 also form a voltage dividing resistor, R2 is 10K ohm, and R6 is 1K ohm.

In one embodiment, the first transistor Q1 and the second transistor Q2 are transistors, which are used as switches and controlled by the external first signal control terminal a and the second signal control terminal B control signals, and the collectors of the first transistor Q1 and the second transistor Q2 are both externally connected at a high level, when the external first signal control terminal a control signal is inputted at a high level and the second signal control terminal B control signal is inputted at a low level, the first transistor Q1 is turned on, the second transistor Q2 is turned off, the third transistor Q3 is turned on, the fourth transistor Q3 is turned off, that is, the first LED lamp D1 is turned on, the second LED lamp D2 is turned off, when the external first signal control terminal a control signal is inputted at a low level and the second signal control terminal B control signal is inputted at a high level, the first transistor Q1 is turned off, the second transistor Q2 is turned on, at this time, the third transistor Q3 is turned off, and the fourth transistor Q4 is turned on, i.e., the first LED lamp D1 is turned off while the second LED lamp D2 is turned on while the yellow lamp is turned on.

The following description will further explain the present invention in connection with the specific embodiments of the present invention to better understand the present invention.

When the scheme of the plate clamp is used for verification, a JTAG plate card to be tested is inserted into a JTAG seat, a first triode Q1 is conducted, a clock signal is set to be supplied to TCK from the outside, when JTAG signal communication is established, Q1 is disconnected, the signal communication connection is interrupted by observing the JTAG working state, then a first triode Q1 is conducted, the TCK pin of the JTAG is connected again, the clock signal supplied from the outside is connected again, and the JTAG working state is observed by repeatedly conducting the connection and the disconnection of the first triode Q1, so that the working performance of the JTAG is obtained. The utility model discloses realize simply, and practice thrift the cost, the anchor clamps board cost is dozens of money only, also convenient operation.

The utility model is used for verify under the LED lamp maximum current state and the long-time break-make whether normal condition of function down to and whether LED lamp circuit can normally work. The method is mainly used for verifying the working capacity of the LED lamp in the research and development stage.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that these specific embodiments are merely illustrative and that various omissions, substitutions and changes in the form and details of the methods and systems described above may be made by those skilled in the art without departing from the spirit and scope of the invention. For example, it is within the scope of the present invention to combine the above-described method steps to perform substantially the same function in substantially the same way to achieve substantially the same result. Accordingly, the scope of the invention is to be limited only by the following claims.

Claims

1. The utility model provides a verify anchor clamps of LED lamp which characterized in that: the LED lamp comprises a PCB, a first LED lamp D1, a second LED lamp D2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first triode Q1, a second triode Q2, a third triode Q3, a fourth triode Q4, a first capacitor C1, a second capacitor C2, a voltage input end and a ground end, wherein the first LED lamp D1, the second LED lamp D2, the first resistor R398583, the sixth resistor R6, the first triode Q1, the second triode Q2, the third triode Q3, the fourth triode Q4, the first capacitor C1 and the second capacitor C2 are arranged on the PCB; wherein:

2. The fixture of claim 1, wherein: the output voltage of the voltage input end is 3.3V.

3. The fixture for LED lamp verification as claimed in claim 1, wherein: the first capacitor C1 and the second capacitor C2 are power filter capacitors, and the values of the first capacitor C1 and the second capacitor C2 are 10uf and 0.1uf respectively.

4. The fixture of claim 1, wherein: the first LED lamp D1 is a green lamp, and the second LED lamp D2 is a yellow lamp.

5. The fixture of claim 1, wherein: the first triode Q1 and the second triode Q2 are triodes; the third transistor Q3 and the fourth transistor Q4 are MOS transistors.